diff options
Diffstat (limited to 'client/mysqldump.c')
| -rw-r--r-- | client/mysqldump.c | 185 |
1 files changed, 184 insertions, 1 deletions
diff --git a/client/mysqldump.c b/client/mysqldump.c index aa81a0e98bf..95206802fd7 100644 --- a/client/mysqldump.c +++ b/client/mysqldump.c @@ -98,6 +98,8 @@ static my_bool verbose= 0, opt_no_create_info= 0, opt_no_data= 0, opt_complete_insert= 0, opt_drop_database= 0, opt_replace_into= 0, opt_dump_triggers= 0, opt_routines=0, opt_tz_utc=1, + opt_slave_apply= 0, + opt_include_master_host_port= 0, opt_events= 0, opt_alltspcs=0, opt_notspcs= 0; static my_bool insert_pat_inited= 0, debug_info_flag= 0, debug_check_flag= 0; @@ -118,7 +120,10 @@ static my_bool server_supports_switching_charsets= TRUE; static ulong opt_compatible_mode= 0; #define MYSQL_OPT_MASTER_DATA_EFFECTIVE_SQL 1 #define MYSQL_OPT_MASTER_DATA_COMMENTED_SQL 2 +#define MYSQL_OPT_SLAVE_DATA_EFFECTIVE_SQL 1 +#define MYSQL_OPT_SLAVE_DATA_COMMENTED_SQL 2 static uint opt_mysql_port= 0, opt_master_data; +static uint opt_slave_data; static uint my_end_arg; static char * opt_mysql_unix_port=0; static int first_error=0; @@ -206,6 +211,10 @@ static struct my_option my_long_options[] = {"allow-keywords", OPT_KEYWORDS, "Allow creation of column names that are keywords.", (uchar**) &opt_keywords, (uchar**) &opt_keywords, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, + {"apply-slave-statements", OPT_MYSQLDUMP_SLAVE_APPLY, + "Adds 'STOP SLAVE' prior to 'CHANGE MASTER' and 'START SLAVE' to bottom of dump.", + (uchar**) &opt_slave_apply, (uchar**) &opt_slave_apply, 0, GET_BOOL, NO_ARG, + 0, 0, 0, 0, 0, 0}, #ifdef __NETWARE__ {"autoclose", OPT_AUTO_CLOSE, "Auto close the screen on exit for Netware.", 0, 0, 0, GET_NO_ARG, NO_ARG, 0, 0, 0, 0, 0, 0}, @@ -264,6 +273,19 @@ static struct my_option my_long_options[] = {"disable-keys", 'K', "'/*!40000 ALTER TABLE tb_name DISABLE KEYS */; and '/*!40000 ALTER TABLE tb_name ENABLE KEYS */; will be put in the output.", (uchar**) &opt_disable_keys, (uchar**) &opt_disable_keys, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, + {"dump-slave", OPT_MYSQLDUMP_SLAVE_DATA, + "This causes the binary log position and filename of the master to be " + "appended to the dumped data output. Setting the value to 1, will print" + "it as a CHANGE MASTER command in the dumped data output; if equal" + " to 2, that command will be prefixed with a comment symbol. " + "This option will turn --lock-all-tables on, unless " + "--single-transaction is specified too (in which case a " + "global read lock is only taken a short time at the beginning of the dump " + "- don't forget to read about --single-transaction below). In all cases " + "any action on logs will happen at the exact moment of the dump." + "Option automatically turns --lock-tables off.", + (uchar**) &opt_slave_data, (uchar**) &opt_slave_data, 0, + GET_UINT, OPT_ARG, 0, 0, MYSQL_OPT_SLAVE_DATA_COMMENTED_SQL, 0, 0, 0}, {"events", 'E', "Dump events.", (uchar**) &opt_events, (uchar**) &opt_events, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, @@ -317,6 +339,12 @@ static struct my_option my_long_options[] = "use the directive multiple times, once for each table. Each table must " "be specified with both database and table names, e.g. --ignore-table=database.table", 0, 0, 0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0}, + {"include-master-host-port", OPT_MYSQLDUMP_INCLUDE_MASTER_HOST_PORT, + "Adds 'MASTER_HOST=<host>, MASTER_PORT=<port>' to 'CHANGE MASTER TO..' in dump produced with --dump-slave.", + (uchar**) &opt_include_master_host_port, + (uchar**) &opt_include_master_host_port, + 0, GET_BOOL, NO_ARG, + 0, 0, 0, 0, 0, 0}, {"insert-ignore", OPT_INSERT_IGNORE, "Insert rows with INSERT IGNORE.", (uchar**) &opt_ignore, (uchar**) &opt_ignore, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, @@ -402,7 +430,7 @@ static struct my_option my_long_options[] = (uchar**) &opt_routines, (uchar**) &opt_routines, 0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0}, {"set-charset", OPT_SET_CHARSET, - "Add 'SET NAMES default_character_set' to the output. Enabled by default; suppress with --skip-set-charset.", + "Add 'SET NAMES default_character_set' to the output.", (uchar**) &opt_set_charset, (uchar**) &opt_set_charset, 0, GET_BOOL, NO_ARG, 1, 0, 0, 0, 0, 0}, {"set-variable", 'O', @@ -764,6 +792,10 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)), if (!argument) /* work like in old versions */ opt_master_data= MYSQL_OPT_MASTER_DATA_EFFECTIVE_SQL; break; + case (int) OPT_MYSQLDUMP_SLAVE_DATA: + if (!argument) /* work like in old versions */ + opt_slave_data= MYSQL_OPT_SLAVE_DATA_EFFECTIVE_SQL; + break; case (int) OPT_OPTIMIZE: extended_insert= opt_drop= opt_lock= quick= create_options= opt_disable_keys= lock_tables= opt_set_charset= 1; @@ -896,6 +928,14 @@ static int get_options(int *argc, char ***argv) return(EX_USAGE); } + /* We don't delete master logs if slave data option */ + if (opt_slave_data) + { + opt_lock_all_tables= !opt_single_transaction; + opt_master_data= 0; + opt_delete_master_logs= 0; + } + /* Ensure consistency of the set of binlog & locking options */ if (opt_delete_master_logs && !opt_master_data) opt_master_data= MYSQL_OPT_MASTER_DATA_COMMENTED_SQL; @@ -906,7 +946,10 @@ static int get_options(int *argc, char ***argv) return(EX_USAGE); } if (opt_master_data) + { opt_lock_all_tables= !opt_single_transaction; + opt_slave_data= 0; + } if (opt_single_transaction || opt_lock_all_tables) lock_tables= 0; if (enclosed && opt_enclosed) @@ -4333,6 +4376,130 @@ static int do_show_master_status(MYSQL *mysql_con) return 0; } +static int do_stop_slave_sql(MYSQL *mysql_con) +{ + MYSQL_RES *slave; + /* We need to check if the slave sql is running in the first place */ + if (mysql_query_with_error_report(mysql_con, &slave, "SHOW SLAVE STATUS")) + return(1); + else + { + MYSQL_ROW row= mysql_fetch_row(slave); + if (row && row[11]) + { + /* if SLAVE SQL is not running, we don't stop it */ + if (!strcmp(row[11],"No")) + { + mysql_free_result(slave); + /* Silently assume that they don't have the slave running */ + return(0); + } + } + } + mysql_free_result(slave); + + /* now, stop slave if running */ + if (mysql_query_with_error_report(mysql_con, 0, "STOP SLAVE SQL_THREAD")) + return(1); + + return(0); +} + +static int add_stop_slave(void) +{ + if (opt_comments) + fprintf(md_result_file, + "\n--\n-- stop slave statement to make a recovery dump)\n--\n\n"); + fprintf(md_result_file, "STOP SLAVE;\n"); + return(0); +} + +static int add_slave_statements(void) +{ + if (opt_comments) + fprintf(md_result_file, + "\n--\n-- start slave statement to make a recovery dump)\n--\n\n"); + fprintf(md_result_file, "START SLAVE;\n"); + return(0); +} + +static int do_show_slave_status(MYSQL *mysql_con) +{ + MYSQL_RES *slave; + const char *comment_prefix= + (opt_slave_data == MYSQL_OPT_SLAVE_DATA_COMMENTED_SQL) ? "-- " : ""; + if (mysql_query_with_error_report(mysql_con, &slave, "SHOW SLAVE STATUS")) + { + if (!ignore_errors) + { + /* SHOW SLAVE STATUS reports nothing and --force is not enabled */ + my_printf_error(0, "Error: Slave not set up", MYF(0)); + } + mysql_free_result(slave); + return 1; + } + else + { + MYSQL_ROW row= mysql_fetch_row(slave); + if (row && row[9] && row[21]) + { + /* SHOW MASTER STATUS reports file and position */ + if (opt_comments) + fprintf(md_result_file, + "\n--\n-- Position to start replication or point-in-time " + "recovery from (the master of this slave)\n--\n\n"); + + fprintf(md_result_file, "%sCHANGE MASTER TO ", comment_prefix); + + if (opt_include_master_host_port) + { + if (row[1]) + fprintf(md_result_file, "MASTER_HOST='%s', ", row[1]); + if (row[3]) + fprintf(md_result_file, "MASTER_PORT='%s', ", row[3]); + } + fprintf(md_result_file, + "MASTER_LOG_FILE='%s', MASTER_LOG_POS=%s;\n", row[9], row[21]); + + check_io(md_result_file); + } + mysql_free_result(slave); + } + return 0; +} + +static int do_start_slave_sql(MYSQL *mysql_con) +{ + MYSQL_RES *slave; + /* We need to check if the slave sql is stopped in the first place */ + if (mysql_query_with_error_report(mysql_con, &slave, "SHOW SLAVE STATUS")) + return(1); + else + { + MYSQL_ROW row= mysql_fetch_row(slave); + if (row && row[11]) + { + /* if SLAVE SQL is not running, we don't start it */ + if (!strcmp(row[11],"Yes")) + { + mysql_free_result(slave); + /* Silently assume that they don't have the slave running */ + return(0); + } + } + } + mysql_free_result(slave); + + /* now, start slave if stopped */ + if (mysql_query_with_error_report(mysql_con, 0, "START SLAVE")) + { + my_printf_error(0, "Error: Unable to start slave", MYF(0)); + return 1; + } + return(0); +} + + static int do_flush_tables_read_lock(MYSQL *mysql_con) { @@ -4995,6 +5162,9 @@ int main(int argc, char **argv) if (!path) write_header(md_result_file, *argv); + if (opt_slave_data && do_stop_slave_sql(mysql)) + goto err; + if ((opt_lock_all_tables || opt_master_data) && do_flush_tables_read_lock(mysql)) goto err; @@ -5013,8 +5183,13 @@ int main(int argc, char **argv) goto err; flush_logs= 0; /* not anymore; that would not be sensible */ } + /* Add 'STOP SLAVE to beginning of dump */ + if (opt_slave_apply && add_stop_slave()) + goto err; if (opt_master_data && do_show_master_status(mysql)) goto err; + if (opt_slave_data && do_show_slave_status(mysql)) + goto err; if (opt_single_transaction && do_unlock_tables(mysql)) /* unlock but no commit! */ goto err; @@ -5042,6 +5217,14 @@ int main(int argc, char **argv) dump_databases(argv); } + /* if --dump-slave , start the slave sql thread */ + if (opt_slave_data && do_start_slave_sql(mysql)) + goto err; + + /* add 'START SLAVE' to end of dump */ + if (opt_slave_apply && add_slave_statements()) + goto err; + /* ensure dumped data flushed */ if (md_result_file && fflush(md_result_file)) { |